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10.65 Untreated Color-Change Zultanite & 0.77 in White Gold

white gold and diamonds with ten carats zultanite as center
more images
Price:
$96,000.00
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From the David Jerome Collection:
Untreated 10.65ct Zultanite 
in 18k White Gold
with 0.77ct Diamonds
Color Change

Details:

The Setting: Lady-Di-Style Single-Halo Split-Shank Birdsnest

- 18K White Gold with UK Hallmark
- 30mmx20mm Visual Top Dimension
- Slender Band with Double-Wire Split Shank 
- Four minimized prongs in each corner
- Total 0.77 carats of 34 conflict-free diamonds in VS (or better) and color G (or better) 
- 7.87 gram (incl. gems)
- Classic Lady Diana style
- Size USA 7 (re-sizing free of charge)

Comment: A classic setting for a rare gem. David's signature bird-nest basket allows maximum light with less weight. Note the minute blossom-shaped works around every single diamond, visible especially on the band; one of the many luxurious details that make David's work a class to itself (even if you don't bother about gem-treatment or cutting quality). The thin band offers comfortable daily wear, though this is perhaps not a jewel for every mundane occasion.  


The Stone:

- Unheated & Untreated Color-Changing Zultanite 10.65 carat
- Shape Cushion: 16.36x12.12x9.54 mm
- Cut: Mixed/Step
- Color Grade: Excellent
- Color Change: Excellent 
- Tone: Medium Dark 60
- Color Zoning: None
- Clarity: Free of Inclusions
- Cutting Grade: Excellent (precision cut in the UK)
- Depth: 78%
- Brilliancy: 95%
- Origin: Turkey

Treatment: None

Certificate: WGI 9624102985

Overall Grade: Excellent+

Comment: Zultanite, the color-changing variety of Diaspore was brought to market only a few years ago. I did not follow the hype because the mining-company tried to coerce a DeBeer's-like monopoly of artificial scarcity into its gems by offering them only to a few select vendors (we were offered such an agreement in 2009 or 2010 but refused). Anyways, the web quickly makes a laughing matter of such old-world approaches. Today, you can find zultanites at many vendors, as always super scarce in finest quality but tons of windowed and weakly colored, little CC merchandise everywhere. We have found all types of green, plus pink, red, yellow, and cognac (only the color) in this museums size gem. Ten carats ultra-clean precision-cut are perhaps the best gem available, marked with a rare 'excellent+' in our grading. It is a WOW under the lens, a WOW to the eye and an 'utterly immaculate' to the more analytic mind (see them under google images, they come close to real life but we don't go there). The color-change is what we call 'dramatic' in other gems, though difficult to capture without digital tricks. I might also add 'dangerous colorchange' because, while I was doing handshots, David first burnt my fingers and then my camera with matches to demonstrate the amazing 'red in green'. But don't fear, you will need only a candle-light dinner to be impressed, or impress. Under 'more images', a close-up shows you the red sparks on one side. I did get much better color-changes on photo (as below) but they all are fuzzy and un-sharp: Try to hold a camera still while your fingers get torched! 

 

    

  

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